Single cylinder horizontal enigne as test bed for multi cilinder engine design

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xander janssen

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Improved version with a depth stop for pressing in the cylinder head.

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xander janssen

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Gear are in place, as are the head and head gasket.

Still to do:
Tapered clamps for flywheels
Pushrod, rockerarm and exhaust cam
Ignition cam
Fuel tank
 

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xander janssen

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First tapered clamp in place. Even with only four M2 screws, the clamping force is impressive.

The extra 2 holes (one visible) are M3 for pushing the bushing out of the flywheel and release the clamping force.
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xander janssen

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Cam and push rod finished. Only have to add a rocker arm and ignition cam.

Compression looks to be sufficient but not so high that it is too hard to overcome.



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xander janssen

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Probably a dumb question but is there any way to make this sort of clamp that keeps the flywheel spokes in alignment, one to the other?? Easy with keys.

Not that I know. The advantage of these clamps over using a key is that you can fix the parts really well by pinning (gear to flywheel and cam to gear) while still allowing to set/adjust timing later by rotating the flywheel over the crank shaft.

The "disadvantage" is indeed that you need to align the 2nd flywheel one way or the other. However, this is only a seemingly disadvantage to me, as with a key, you have to cut the key ways in both flywheels in the same orientation. So also there an alignment is needed.

In the end, I will align them "by sight" which is sufficient for me as this is "only" a test-bed to test various engine parameters.
 
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